Generalized Query?

[Dave Peticolas]

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On Sun, 2001-12-16 at 14:33, Derek Atkins wrote:
> Hi,
>=20
> I've been thinking about the problem of a generalized query,
> but I haven't made any headway.  The reason I haven't been
> able to make much headway is that queries can be so different
> that, say, a query on the customer database looks nothing
> like the query on an account.  However, there may be times
> when you want to search on something like:
>=20
> 	return all customers where invoice charges account A
>=20
> I'm wondering if we really want a unified query, or if what we
> really want is a query framework so that each type of object
> can define its' own query terms and predicates?

What would be the difference?


> I haven't put many neurons into this problem, yet -- I was
> wondering if anyone else has?

I haven't really thought about it either, but it seems to me
that you would want to be able to combine terms from different
kinds of objects.

dave


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